Back rest with lumbar support



FIG. 1 is a front perspective view of the back rest with lumbar support;

FIG. 2 is a rear perspective view of the back rest with lumbar support;

FIG. 3 is a left side elevational view of the back rest with lumbar support;

FIG. 4 is a from view of the back rest with lumbar support;

FIG. 5 is a right side elevational view of the back rest with lumbar support;

FIG. 6 is a rear view of the back rest with lumbar support;

FIG. 7 is a top view of the back rest with lumbar support;

FIG. 8 is a bottom view of the back rest with lumbar support;

FIG. 9 is a front perspective view of a first variant of the back rest;

FIG. 10 is a rear perspective view of a first variant of the back rest;

FIG. 11 is a left side elevational view of the first variant of the back rest;

FIG. 12 is a front view of the first variant of the back rest;

FIG. 13 is a right side elevational view of the first variant of the back rest;

FIG. 14 is a rear view of the first variant of the back rest;

FIG. 15 is a top view of the first variant of the back rest; and,

FIG. 16 is a bottom view of the first variant of the back rest.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for the “back rest with lumbar support,” as shown and described. 